. 
. egen id=group(Province)
{\smallskip}
. xtset id year
       panel variable:  id (strongly balanced)
        time variable:  year, 2013 to 2015
                delta:  1 unit
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. gtfpch K L= Y: CO2, dmu(Province) global sav(ex.gtfpch.result,replace)
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 The directional vector is (0 0 Y -CO2)
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{\smallskip}
 Total Factor Productivity Change:Malmquist-Luenberger Productivity Index
    (Row: Row \# in the original data; Pdwise: periodwise)
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     {\TLC}\HLI{64}{\TRC}
     {\VBAR} Row       Province   id      Pdwise    TFPCH     TECH    TECCH {\VBAR}
     {\LFTT}\HLI{64}{\RGTT}
  1. {\VBAR}   2          Anhui    1   2013{\tytilde}2014   0.9943   0.9662   1.0290 {\VBAR}
  2. {\VBAR}   3          Anhui    1   2014{\tytilde}2015   0.9951   0.9645   1.0317 {\VBAR}
  3. {\VBAR}   5        Beijing    2   2013{\tytilde}2014   1.0328   1.0000   1.0328 {\VBAR}
  4. {\VBAR}   6        Beijing    2   2014{\tytilde}2015   1.0583   1.0000   1.0583 {\VBAR}
  5. {\VBAR}   8      Chongqing    3   2013{\tytilde}2014   1.0013   0.9883   1.0132 {\VBAR}
  6. {\VBAR}   9      Chongqing    3   2014{\tytilde}2015   1.0222   0.9659   1.0582 {\VBAR}
                                     ...
                                     ...
                                     ...
 55. {\VBAR}  83       Xinjiang   28   2013{\tytilde}2014   0.9897   0.9746   1.0154 {\VBAR}
 56. {\VBAR}  84       Xinjiang   28   2014{\tytilde}2015   0.9881   0.9727   1.0159 {\VBAR}
 57. {\VBAR}  86         Yunnan   29   2013{\tytilde}2014   1.0161   0.9889   1.0275 {\VBAR}
 58. {\VBAR}  87         Yunnan   29   2014{\tytilde}2015   1.0155   0.9849   1.0310 {\VBAR}
 59. {\VBAR}  89       Zhejiang   30   2013{\tytilde}2014   1.0143   0.9677   1.0481 {\VBAR}
 60. {\VBAR}  90       Zhejiang   30   2014{\tytilde}2015   1.0028   0.9695   1.0343 {\VBAR}
     {\BLC}\HLI{64}{\BRC}
Note: missing value indicates infeasible problem.
(note: file ex.gtfpch.result.dta not found)
file ex.gtfpch.result.dta saved
{\smallskip}
Estimated Results are saved in ex.gtfpch.result.dta.
{\smallskip}
. 
